Add or subtract. Write the answer in lowest terms.
- 
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Multiply.-10x7(5x4 + 10)
A. -50x11 + 10 B. -50x4 - 100 C. -150x7 D. -50x11 - 100x7
Mathematics
Solve the compound linear inequality graphically. Write your answer in interval notation. 9 < 
< 12 
A. 
? 
B. 
C. 
D. 
Mathematics
At one high school, students can run the 100-yard dash in an average of 15.2 seconds with a standard deviation of .9 seconds. The times are very closely approximated by a normal curve. Find the percent of times that are indicated. Round to the nearest whole percent.At least 14.3 seconds
A. 16% B. 14% C. 84% D. 50%
Mathematics
Use a calculator to evaluate each expression to the nearest tenth of a degree.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics